Business Date Using "New Column", Instead of "New Measure"

[gablewithbird]

"Ordered Date" + "VSLA" (n-days) = "Business Dates" (Adjusted Order Date) 

What I want to achieve is simple in Excel, but it's difficult in Power BI.

I've gone through 3 posts related to this question but no way out for me.

I do this in Excel so it's like this.

In PowerBI, I hope to see the output to be created by "New Column" in my table called "Table1", instead of "New Measure". Clearly, what I have in the image is incorrect. 

Any direction would be helpful.

Thanks in advance. 

[Cmcmahan]

The easiest way to accomplish this is to set up a date dimension, and mark days as business days on that.  Then you can do the math pretty easily from there: https://radacad.com/do-you-need-a-date-dimension

Here's somebody having a similar issue of finding business days between two dates: https://community.powerbi.com/t5/Desktop/calculate-number-of-working-days-between-2-dates/td-p/55456